Gold. Gold has been used for coins, jewelry and art since the beginning of recorded history.
More Science Trivia
Borderline. Unstable moods and impulsive behavior are the most common characteristics of borderline personalities.
Ores. Ores are rocks that contain important elements, particularly metals.
Oil Hungry Bacteria. Oil-hungry bacteria are called "petrophilic microbes".
A Flea On A Dog. Fleas are one of an order of wingless insects called Siphonaptera.
Rechargeable. The oldest electrical cell was discovered around 250 BC.
Gamma Rays. Gamma rays are ultra-high frequency light rays created when a nucleus relaxes from an excited state.